Vikram Shah sent us the link to a video he created:
Hi Comrades! I’ve made a Pencil FAQ video taking submissions from my friends on Facebook and answering their questions about pencils. Although it’s a bit long at 30:17, I think it would be educational to those who wonder, for example, why pencils are yellow, or why most are hexagonal. Please take a look if you have the time!
(If the embedded video doesn’t work for you, you can view it on YouTube here.)
Many thanks to Vikram for his Service to Pencildom. I can only imagine the patience involved with a project like this, in addition to the shear generosity involved with this kind of sharing.